2.1.730 Part 4 Section 3.8.18, fgColor (Foreground Color)

For additional notes that apply to this portion of the standard, please see the notes for color, §; tabColor, §; bgColor, §3.8.3(a).

a.   The standard does not specify the priorities of the various color types.

Office prioritizes the attributes as auto < indexed < rgb < theme, and only roundtrips the type with the highest priority if two or more are specified.